2026-07-07T12:20:27Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/55442021-12-30T23:42:12Zcom_10259_5363com_10259_5086com_10259_2604col_10259_5364

00925njm 22002777a 4500 dc Osés Gómez, Sandra María author Nieto, Sonia author Rodrigo, Sara author Pérez, Sergio author Rojo, Susana author Sancho Ortiz, María Teresa author Fernández Muiño, Miguel Ángel author 2020-12 Strawberry-tree (Arbutus unedo L.) honey is expensive and difficult to characterize by melissopalinology. This study aimed to authenticate strawberry-tree (A. unedo L.) honeys from southern Europe, determining arbutin, groups of polyphenols, volatile and semivolatile compounds, as well as biological activities such as trolox equivalent antioxidant capacity, antioxidant activities against both hydroxyl (AOA) and superoxide radicals (SRS), oxygen radical absorbance capacity, anti-inflammatory activity, and antimicrobial activity against 7 microorganisms (Escherichia coli, Streptococcus mutans, Staphylococcus aureus, Aspergillus flavus, Aspergillus niger, Fusarium sp., and Penicillium commune). Arbutin, analyzed using HPLC-UV, was quantified in 83% of the samples. Polyphenols' contents were high. Norisoprenoids and benzene derivatives were the major compounds determined using gas chromatography-mass spectrometry. Theobromine was detected in 67% of samples. 2,6,6-Trimetyl-4-oxo-2-cyclohexen-1-carboxaldehyde, 3,4,5 trimethylphenol and 2-hydroxycyclopent-2-en-1-one were proposed as potential strawberry-tree floral markers. Antioxidant and anti-inflammatory activities were significant. Honeys’ extracts showed higher AOA and SRS, and better antimicrobial activities than the honeys. This study highlights the potential of strawberry-tree honeys and/or their phenolic extracts for food, pharmaceutical and cosmetic uses. 2212-4292 http://hdl.handle.net/10259/5544 10.1016/j.fbio.2020.100768 Strawberry-tree honey Arbutus unedo L. Arbutin Polyphenols Norisoprenoids Benzene derivatives Antioxidant activities Anti-inflammatory activity Antimicrobial activities Authentication of strawberry tree (Arbutus unedo L.) honeys from southern Europe based on compositional parameters and biological activities